my chromes are still shining after keeping them on thru the winter (albeit a mild winter)..funnily enough no pitting on front wheels (where all the brake dust gathers), but a bit of pitting on back wheels in the inner edge of the rim, and that's only because I went away on holiday for 3 weeks leaving the wheels dirty!!!!
If you get decent quality chromes with thick plating (mine are triple plated), and you polish them regularly and clean them regularly, you can maintain them - but it's hard work! Ideally, they are suited to drier climates!
im gonna find out how thick the plating is on these!
nice rims mate can you post a closer pic of the rims! thanks for the comment!